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Does fuel pressure vary with RPM? Or is the amount of fuel varied ONLY by pulsing the injectors more/less. Can an injector be pulsed for a different duration?

Reason I ask is because I'm thinking about dirty injectors.... like a showerhead. More pressure may make a dirty injector spray better.... so low RPM could bog until the pressure increases and the car suddenly takes off when it sprays well...

Massiv.
 

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T3/T4 60-1
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pressure does vary with engine load, but not that much.... i've seen it go as low as 39 and as high as mid 50s.... 43psi is what the ecu tries to keep it at under normal conditions....

to answer your question, yes pressure varies, but not with rpm, but rather with engine load
 
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